I pedal striked when I had my first fixed, which was a conversion. I took a slow U turn on an incline and fell over. What "deadforking" said is true because you'll never learn your limit.

Eventually you'll want to learn how to skid whip turns/drift them so that way you won't have to turn so sharply on some turns. It keeps you from pedaling through some turns and having your pedals touch. Of course you gotta get used to the balancing of doing that though (practicing hockey stops will help you get the balance of doing that).